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Avalanche Forecast

Archived

Feb 3rd, 2025–Feb 4th, 2025

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

North Columbia, South Columbia, Esplanade, Jordan, North Selkirk, West Purcell, Badshot-Battle, Central Selkirk, Goat, Gold, Kokanee, Retallack, Valhalla, Whatshan.

Conservative terrain travel is recommended. Riders could trigger dangerous avalanches at any elevation, on all aspects.

Confidence

High

Avalanche Summary

An avalanche cycle occurred on the weekend, with most avalanches being small to large (size 1 to 2). They were 20 to 60 cm deep and occurred on all aspects and at all vegetation bands, with the most occurring on northerly treeline and alpine features.

It remains possible for humans to trigger similar avalanches going forward.

Snowpack Summary

Around 40 to 60 cm of snow accumulated since last Friday, with some wind distribution occurring in wind-exposed terrain. This snow remains soft in wind-sheltered terrain. The snow overlies various layers that it may not bond well to, including faceted grains, surface hoar crystals in wind-sheltered openings, and a hard melt-freeze crust on sun-exposed slopes.

The middle to upper portion of the snowpack between approximately 50 and 100 cm is faceted with numerous other layers of surface hoar and/or crusts that formed over the month of January.

The lower snowpack is strong.

Weather Summary

Monday Night

Mostly cloudy with 0 to 3 cm of snow. 10 km/h east ridgetop wind. Treeline temperature -16 °C.

Tuesday

Mix of sun and cloud with 0 to 3 cm of snow. 10 to 20 km/h east ridgetop wind. Treeline temperature -16 °C.

Wednesday

Mix of sun and cloud with 0 to 3 cm of snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -14 °C.

Thursday

Clear skies. 10 km/h southwest ridgetop wind. Treeline temperature -14 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • It's a good day to make conservative terrain choices.
  • Remote triggering is a big concern, be aware of the potential for wide propagations and large, destructive avalanches at all elevations.
  • Don't let the desire for deep powder pull you into high consequence terrain.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.